<?php

require_once 'HTMLPurifier/HTMLModule/Tidy.php';

require_once 'HTMLPurifier/TagTransform/Simple.php';
require_once 'HTMLPurifier/TagTransform/Font.php';

require_once 'HTMLPurifier/AttrTransform/BgColor.php';
require_once 'HTMLPurifier/AttrTransform/BoolToCSS.php';
require_once 'HTMLPurifier/AttrTransform/Border.php';
require_once 'HTMLPurifier/AttrTransform/Name.php';
require_once 'HTMLPurifier/AttrTransform/Length.php';
require_once 'HTMLPurifier/AttrTransform/ImgSpace.php';
require_once 'HTMLPurifier/AttrTransform/EnumToCSS.php';

require_once 'HTMLPurifier/ChildDef/StrictBlockquote.php';

class HTMLPurifier_HTMLModule_Tidy_XHTMLAndHTML4 extends
	  HTMLPurifier_HTMLModule_Tidy
{
	
	function makeFixes() {
		
		$r = array();
		
		// == deprecated tag transforms ===================================
		
		$r['font']   = new HTMLPurifier_TagTransform_Font();
		$r['menu']   = new HTMLPurifier_TagTransform_Simple('ul');
		$r['dir']	= new HTMLPurifier_TagTransform_Simple('ul');
		$r['center'] = new HTMLPurifier_TagTransform_Simple('div',  'text-align:center;');
		$r['u']	  = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:underline;');
		$r['s']	  = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:line-through;');
		$r['strike'] = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:line-through;');
		
		// == deprecated attribute transforms =============================
		
		$r['caption@align'] = 
			new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
				// we're following IE's behavior, not Firefox's, due
				// to the fact that no one supports caption-side:right,
				// W3C included (with CSS 2.1). This is a slightly
				// unreasonable attribute!
				'left'   => 'text-align:left;',
				'right'  => 'text-align:right;',
				'top'	=> 'caption-side:top;',
				'bottom' => 'caption-side:bottom;' // not supported by IE
			));
		
		// @align for img -------------------------------------------------
		$r['img@align'] =
			new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
				'left'   => 'float:left;',
				'right'  => 'float:right;',
				'top'	=> 'vertical-align:top;',
				'middle' => 'vertical-align:middle;',
				'bottom' => 'vertical-align:baseline;',
			));
		
		// @align for table -----------------------------------------------
		$r['table@align'] =
			new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
				'left'   => 'float:left;',
				'center' => 'margin-left:auto;margin-right:auto;',
				'right'  => 'float:right;'
			));
		
		// @align for hr -----------------------------------------------
		$r['hr@align'] =
			new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
				// we use both text-align and margin because these work
				// for different browsers (IE and Firefox, respectively)
				// and the melange makes for a pretty cross-compatible
				// solution
				'left'   => 'margin-left:0;margin-right:auto;text-align:left;',
				'center' => 'margin-left:auto;margin-right:auto;text-align:center;',
				'right'  => 'margin-left:auto;margin-right:0;text-align:right;'
			));
		
		// @align for h1, h2, h3, h4, h5, h6, p, div ----------------------
		// {{{
			$align_lookup = array();
			$align_values = array('left', 'right', 'center', 'justify');
			foreach ($align_values as $v) $align_lookup[$v] = "text-align:$v;";
		// }}}
		$r['h1@align'] =
		$r['h2@align'] =
		$r['h3@align'] =
		$r['h4@align'] =
		$r['h5@align'] =
		$r['h6@align'] =
		$r['p@align']  =
		$r['div@align'] = 
			new HTMLPurifier_AttrTransform_EnumToCSS('align', $align_lookup);
		
		// @bgcolor for table, tr, td, th ---------------------------------
		$r['table@bgcolor'] =
		$r['td@bgcolor'] =
		$r['th@bgcolor'] =
			new HTMLPurifier_AttrTransform_BgColor();
		
		// @border for img ------------------------------------------------
		$r['img@border'] = new HTMLPurifier_AttrTransform_Border();
		
		// @clear for br --------------------------------------------------
		$r['br@clear'] =
			new HTMLPurifier_AttrTransform_EnumToCSS('clear', array(
				'left'  => 'clear:left;',
				'right' => 'clear:right;',
				'all'   => 'clear:both;',
				'none'  => 'clear:none;',
			));
		
		// @height for td, th ---------------------------------------------
		$r['td@height'] = 
		$r['th@height'] =
			new HTMLPurifier_AttrTransform_Length('height');
		
		// @hspace for img ------------------------------------------------
		$r['img@hspace'] = new HTMLPurifier_AttrTransform_ImgSpace('hspace');
		
		// @name for img, a -----------------------------------------------
		$r['img@name'] = 
		$r['a@name'] = new HTMLPurifier_AttrTransform_Name();
		
		// @noshade for hr ------------------------------------------------
		// this transformation is not precise but often good enough.
		// different browsers use different styles to designate noshade
		$r['hr@noshade'] =
			new HTMLPurifier_AttrTransform_BoolToCSS(
				'noshade',
				'color:#808080;background-color:#808080;border:0;'
			);
		
		// @nowrap for td, th ---------------------------------------------
		$r['td@nowrap'] = 
		$r['th@nowrap'] =
			new HTMLPurifier_AttrTransform_BoolToCSS(
				'nowrap',
				'white-space:nowrap;'
			);
		
		// @size for hr  --------------------------------------------------
		$r['hr@size'] = new HTMLPurifier_AttrTransform_Length('size', 'height');
		
		// @type for li, ol, ul -------------------------------------------
		// {{{
			$ul_types = array(
				'disc'   => 'list-style-type:disc;',
				'square' => 'list-style-type:square;',
				'circle' => 'list-style-type:circle;'
			);
			$ol_types = array(
				'1'   => 'list-style-type:decimal;',
				'i'   => 'list-style-type:lower-roman;',
				'I'   => 'list-style-type:upper-roman;',
				'a'   => 'list-style-type:lower-alpha;',
				'A'   => 'list-style-type:upper-alpha;'
			);
			$li_types = $ul_types + $ol_types;
		// }}}
		
		$r['ul@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $ul_types);
		$r['ol@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $ol_types, true);
		$r['li@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $li_types, true);
		
		// @vspace for img ------------------------------------------------
		$r['img@vspace'] = new HTMLPurifier_AttrTransform_ImgSpace('vspace');
		
		// @width for hr, td, th ------------------------------------------
		$r['td@width'] =
		$r['th@width'] = 
		$r['hr@width'] = new HTMLPurifier_AttrTransform_Length('width');
		
		return $r;
		
	}
	
}

class HTMLPurifier_HTMLModule_Tidy_Transitional extends
	  HTMLPurifier_HTMLModule_Tidy_XHTMLAndHTML4
{
	var $name = 'Tidy_Transitional';
	var $defaultLevel = 'heavy';
}

class HTMLPurifier_HTMLModule_Tidy_Strict extends
	  HTMLPurifier_HTMLModule_Tidy_XHTMLAndHTML4
{
	var $name = 'Tidy_Strict';
	var $defaultLevel = 'light';
	
	function makeFixes() {
		$r = parent::makeFixes();
		$r['blockquote#content_model_type'] = 'strictblockquote';
		return $r;
	}
	
	var $defines_child_def = true;
	function getChildDef($def) {
		if ($def->content_model_type != 'strictblockquote') return parent::getChildDef($def);
		return new HTMLPurifier_ChildDef_StrictBlockquote($def->content_model);
	}
}

